Drawing pen



FIG. 1 is a perspective view of a drawing pen showing our new design; _

FIG. 2 is a right end elevational view of the barrel;

FIG. 3 is a left end elevational view of the cap; and

FIG. 4 is a side elevational view of the drawing pen with the cap portion shown in vertical cross-section along the longitudinal _axis, the opposite side being a mirror image thereof. 

The ornamental design for a drawing pen, as shown and described. 